Driving in **fog** is especially dangerous because it reduces the visibility of the road, signs, and vehicles, and additionally, tires have less grip due to the wet ground. For these reasons, it is crucial to take certain precautions, such as **maintaining a large safety distance** from other vehicles.

The **safety distance** is the minimum space you must leave with the vehicle in front of you to avoid collisions in case of a sudden and unexpected braking. In foggy conditions, it is even more important to increase this distance. This is because reduced visibility and less tire grip make it more difficult to react quickly to any braking of the vehicle ahead.


Additionally, it is recommended that there be at least **two or three seconds of separation** between your vehicle and the one in front under normal conditions. However, in foggy situations, it is advisable to increase this separation by at least one more second to have more reaction time.

Therefore, the correct answer is **yes, the safety distance should be increased** when there is fog, to have more space to react to any braking of the vehicle in front.